Heating-stove.



0. K. RICE.

HEATING STOVE.

APPLICATION FILED senze. 1913.

1,14%645. Patented July 20, 1915.

2 SHEETS-SHEET I.

'llv l q' f ll w WITNESSES: INVENTOR:

, I 8mm W? 5 PATTORNEY.

COLUMBIA PLANMRAPH co., WASHINGTON, D. c.

c. K. RICE.

HEATING STOVE.

APPLICATION FILED SEPLZG. 1913- l 1 47,645 Patented July 20, 1915.

2' SHEETS-SHEET 2.

ATTORNEY.

HEATING-STOV Application filed September 26, 19-13. Seria1No.791,9 22.-"

i To all whom it may concern thereon.

Be it known that LCHAeLns RICE, a citizen of the United States-residing atjIndianapolis, in the :county of Marion and State of Indiana,-have 'inve'nted anew and useful Heating-Stove, of which the following is a specification, reference being had to the accompanying drawings and to the letters and figures v of reference l marked This invention relates generally to the combustion of fuel and production of heat therefrom and has reference more particularly to various features of construction in stoves, furnaces andthe like.

An object of the invention is to provide a stove or furnace of improved construction that may be produced inexpensively and which shall be efficient, economical to a high degree in the production'of heat and con:

sumption of fuel, and be durable in use.

With the above mentioned and other objectsin view, the invention consistsin an improved stove or furnace having certain novel features of construction whereby the objects of the invention are practically attained; the invention consisting further in the novel'parts and combinationsand arrangements of parts as hereinafter particularly described'and claimed.

Referring to the drawings, Figure 1 is a front elevation of the improved stove or furnace partially broken away to expose in ternal portions thereof; Fig. '2, a vertical section of the stove on the line A A in Fig. 1; Fig. 3, a fragmentary section approximately on the line B B in' Fig. 2 (and corresponding to the line B B in Fig. l) Fig. 4, a horizontal section on the line C- C in Fig. 2; Fig. 5, a horizontal section'on the line D1) in Fig. 2; Fig. 6, a rear elevation of the stove partially broken away; Fig. 7, a rear elevation of one of the novel parts of theinvention; Fig. 8, an inverted plan of the fire pot of the stove; Fig. 9, a top plan of one ofutheprincipal parts-of the improvement; and Fig. 10, aninverted plan of another one of the parts of invention.

In the different figures of the drawings, like reference characters indicate like parts or features of construction herein referred to. 1

' For illustrative purposes, the invention is shown in connection with that type of heater commonly known as a stove which may suit I Specification of Letters Patent.

Mammy 2c, 1915.

ably comprise a' base bottom 1, having a flange 2 provided with supporting legs 3, -an ash pit being formed by a front fl, a back 5, sides 6 and 7, and an apertured top 8 on whichafire grate 9 is supported. The front ran srarns PATENT {Q K E I a'is provided with a door'lO 'havingan air inlet regulatorll as is customary.

A section'of air duct is formed behind th ash pit by means of a back wall 12 extending upward from the base flange and having side walls l3 and 14 thereon that are connected w-the back 5 oftheash pit: The back wall 12 has air inlet openings 15 thereinthatmaybe closed or opened by a draft regulator 16 mountedsoas' to slide-horizontally onjthe back 12 and providedwith apertures 17 for admitting the atmospheric air, the regulator having ahandle 18 thereon so that an attendant at the'rear of the stove may adjust the/regulator if desired." The regulator is provided with two opposing lugs 19 and 20, and a rock shaft-'21is-journa'led' in front and'rear portions of thefiange' and has anarm'22 on its rear end that extends upward between the lugs so that rocking of the arm shall move the regulator, the forward end of'the rock shaft being provided with" a suitable handwheel 23 arranged opposite the front portion of the flange. U I Y A suitable fire pot or bowl 24 is seated upon the top 8 so as to exte'nd'about the fire grate, and the bowl has an air ductsection on its rear portion that is formedby side walls 25 and 26 connected tofthe wall of the fire pot, and anouter wall 27 connected to the sides, the walls of the ductcontinuing from the duct walls that are formedbehind' The stove comprises also a drum or body part 28 provided with a fire door 29 on its front portion and having a regulator-30,for the admission of air above the the if desired. The drum or body portion may be either rolled sheet metal or a casting and it is provided with atop 31 having a flue hole 32-therein adjacent to the rear portion'of the drum and provided with a flange 33 to which a draft pipe 3a is connected. The drum or body part 28 is seated upon the top of the fire pot and its lower rear portion is cut away so as to form an air opening 35 adjacent to the upper end of the duct sec-' suitably connected to the wall of the drum above and along the sides of the air opening 35 and seated on the Walls of the duct section at the rear of the fire pot. As will be seen, a duct is provided that extends from the rear of the ash pit and upward behind the fire bowl and into the drum immediately above the fire pot, which duct is continued on the inner side of the drum or body part, as will further appear.

The interior of the drum or body part forming the combustion chamber of the stove is provided with a novel device consisting of a partition which forms wall portions of air ducts and serves the purpose of a baffle plate, a deflector and a heat radiating wall or plate for heating air and conducting the heated air to the surface of the fire, and for radiating heat above the fire to promote combustion, and the device comprises an approximately upright air duct portion 37 arranged near the rear portion of the drum and extending downward opposite to the air opening 35 and to the top of the fire pot opposite to the hood 36 so as to form the inner wall of a continuing air duct, the lower portion 38 forming the required elbow or bend of the duct wall, the partition having an upwardly and forwardly extending air duct portion 39 continuing from the portion 37 to a suitable distance toward the front portion of the drum, and on this forwardly extending portion is an upright wall portion 40. Partitional ribs 41 and 42 on the back of the portion 37 extend from the bottom portion 38 at opposite sides respectively of the air opening 35 upward against the inner side of the wall of the drum 28 and therewith form an air duct continuation, partitions 43 and 44 extending upward from the ribs 41 and 42 against the wall of the drum and forward integrally with the portion 39 toward but not entirely to the front wall 40, leaving passageways opposite their forward ends, the tops of the partitions sloping downward from the rear toward the forward portion of the drum. The sides of the partition fit against the inner side of the drum and form side walls 45 and 46 respectively opposite the ribs 41 and 42 respectively so as to form other air ducts; and side walls 47 and 48 extending upwardly from the walls 45 and 46 respectively and forward along the portion 39 to the front wall 40 and having sloping tops corresponding to the tops of the partitions 43 and 44. The wall portions 45 and 46 are provided with securing ears 49 and 50 respectively that are suitably secured to the inner side of the drum. The lower end of the portion 37 between the partitions 41 and 45, and 42 and 46, is provided with downwardly and forwardly extending fingers 51 and 52 respectively that permit air from the duct-s to escape to the fire and prevent the fuel from clogging the lower ends of the ducts. The rear portions of the partitions 47 and 48 are provided with securing ears 53 and 54 which are suitably secured to the upper port-ion of the wall of the drum 28. A top plate 55 is suitably secured to the side walls 47 and 48 in contact with the front wall 40 and the partitions 43 and 44, the plate sloping so that soot and ashes shall not accumulate thereon.

It should be understood that the different portions of the structure may be variously formed as may be deemed best, and various modifications in the details may be made within the scope of the accompanying claims.

In practical use, various kinds of fuel obviously may be used, and in case coal or coke is used the fire pot may be kept approximately full, air to sustain combustion being admitted through the grates as usual when heat is required. The regulator 16 is adjusted to admit the desired amount of cool air which becomes heated in its passage up the duct and while passing around the ends of the partitions 43 and 44, the air being drawn down the side ducts and becoming further heated before passing out between the fingers 51 and 52 and over the fire, the circulation of air being induced by the chimney draft as will be understood. The heated air mixing with the products of more or less perfect combustion aids in producing more perfect combustion of the gases thrown off by the fire, combustion being further promoted by heat radiated from the front of the partition, so that a high degree of economy in fuel consumption results.

Having thus described the invention, what is claimed as new is 1. A heating stove including a base, a fire pot on the base, and a drum on the fire pot provided with an up-duct extending from the base and along the exterior of the wall of the fire pot and thence inward through the wall of the drum and upward on the inner side of the drum, and two down-ducts within the drum extending from the upper end of the up-duct downward on opposite sides respectively of the up-duct substantially to the top of the fire pot and opening above the same, for heating air in the upduct and discharging the air onto the fire.

2. A heating stove including a drum having an opening in the wall thereof, and a partitional structure in the drum extending opposite the wall and connected thereto on planes beyond the opposite sides of the opening, the structure with the wall having an upwardly and forwardly extending middle duct and two continuing rearwardly and downwardly extending side air ducts there in, the lower end of the middle duct being constructed to receive air through the opening of the wall, the lower ends of the side ducts being open to the interior of the drum for discharging the air onto the fire.

3. A heating stove including a fire pot, a drum seated upon the fire pot and having an opening in the lower portion of the wall thereof, and a partitional structure having its sides connected to the inner side of the wall of the drum, the structure extending opposite the wall and having two partitions connected thereto intermediate the side portions extending to the wall on opposite sides respectively of the opening, the upper portion of the structure having a passageway therein forming communication between the spaces formed between and on opposite sides of the partitions, the spaces and the passageway forming ducts for the passage of air from the opening of the wall of the drum and upward within the drum, and thence downward as two separate air ducts to the lower portion of the interior of the drum and opening above the fire pot.

4. In a heating stove, a structure comprising an ash pit box, a fire pot on the box, a drum on the pot having an air opening in the lower rear portion of the wall thereof adjacent to the top of the pot, and a top on the drum, the structure having an up-draft air duct extending upward behind the box and the pot to the air opening, a partition in the drum having an air duct extending from the air opening upward within the drum toward saidtop and thence forward, the partition having also two down-draft air ducts extending from the up-draft air duct rearward and thence downward on opposite sides respectively of the up-draft duct on the interior of the drum approximately to the top of the fire pot and opening above the same.

5. In a heating stove, the combination with an ash pit box, and a fire pot onthe box having an updraft duct section on the exterior thereof, of a drum on the fire pot having an air opening in the lower rear portion of the wall thereof at the upper end of the duct section of the fire pot, the drum having a hood on the exterior thereof extending opposite the air opening and the upper end of the duct section to form a continuation of the air opening with the duct section, a partitional structure in the drum extending opposite the wall andconnected thereto beyond the opposite sides of the air opening and with the wall of the drum forming an updraft duct extending upward from the air opening and a downdraft duct communicating with the upper end of the updraft duct and extending downward approximately to the top ofthe fire pot to discharge heated air onto the fire, the top of the structure being inclinedand extending downward from the rear toward the forward portion of the wall of the drum, and a top on the drum having a flue-opening above the top of the structure.

6. In a heating stove, the combination of an ash pit box, the back of the box being provided with a duct section, a regulator movably connected with the lower end of the duct section, a fire pot on the box having a duct section thereon communicating with the duct section of the box, and a drum on the fire pot having an air opening in the lower portion of the wall thereof at the upper end of the duct section of the fire pot, the drum having a hood on the exterior thereof extending opposite the air opening and the upper end of the duct section of the fire pot to form a continuation of the air opening with the duct section, and a partitional structure in the drum secured thereto and with the wall of the drum forming air ducts extending upward from the air opening and downward approximately to the top of the fire pot, to discharge heated air onto the fire.

In testimony whereof, I affix my signature in presence of two witnesses.

CHARLES K. RICE. Witnesses:

E. T. Srnvrns, M. E. SPARROW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

